Korean Oxy-Fuel Demonstration ti Project. Sung -Chul Kim

Transcription

1 Korean Oxy-Fuel Demonstration ti Project Sung -Chul Kim Korea Electric Power Corporation Korea Electric Power Research Institute

2 1. Status of korean Power Industry 2. Introduction of Korean Oxy-combustion Project 3. Summary of Korean Oxy-combustion Project

3 A major energy consuming sector that accounts for 25% of the nation s overall GHG emissions A steady increase in energy demand d due to enhanced lifestyles and economic growth Changes in the pattern of energy demand due to social developments and higher living levels : primary energy secondary energy (electric power)

4 ( Unit : million TOE Total Power Sector 84 Total Energy Consumption in 2007 : 2.5 Times versus 1990 s Energy Consumption in Power Sector : 3.3 Times versus 1990 s Share of Power Sector : 28% (1990) 36% (2007)

5 (GWh) LNG Hydro Bituminous Coal Nuclear Power Gen. Volume in 2007 Increased 3.74 Times versus 1990 s 107,670 GWh (1990) 403,056 GWh (2007) Share of Power Generation from Energy Sources ( ) Nuclear : 49 36, Coal : 21 39, LNG : 7 20, Hydro : 6 1.3

6 (CO 2 Emission Trend ) Unit : million-ton CO 2 Energy Agriculture, Waste % Industry % [Energy Sector] Transport. 19.7% Industry 35.4% Home, Commerce 12.3% Etc. 2.1% Power Gen. 30.5% 6.7% 10.2% 10.6% 5.1% CO 2 Emission in 2006 : million-ton (9 th in the World) 98% Increase versus 1990 s Energy & Industry Sector 95% Share of Total

7 ( CO 2 Emission Trend) Share of Power Sector (%) Unit : million Ton 12.0% 17.0% 20.3% 22.0% 24.0% 25.7% CO 2 Emission in Power Sector : 154 million Ton (2006) Increase of Approx. 4.3 Times versus 1990 s Power Sector s Share : 12.0% (1990) 25.7% (2006)

8 CO 2 Emission Intensity in Power Sector Unit : g CO2/kWh Thermal Total CO 2 Emission Intensity in Thermal Power : 731g CO 2 /kwh (2006) Top Level Efficiency on Power Plant : 38.2%

9 Scenarios of CO 2 Reduction Target in Korea (2009, August, BAU) ( Unit: Mil.Ton CO 2 ) Scenario 1 Scenario 2 Scenario 3

10 The Present State of Green House Gas in Korea Korea is expected to be the obligatory reduction country by Kyoto Protocol during 2 nd commitment period; Actual technology needed to correspond with the state of obligatory reduction State of C02 Emission in Korea CO2 : 590 mil-tonco2/yr(2006) Coal firing power plant : 154 Mil-tonCO2/yr 26% of total CO2 emission i 75% of total power generation In case of including Heavy oil, Max % CO 2 from Electric Power Generation Fixed Exhaustion Source 3.2 Mil-tCO2/500MWe-unit Ideal target for Apply CCS Technology CO2 Capture & Storage

11 Summary of the Progress for Korean Oxy-PC Project Oxy-Fuel Combustion R&D Started in 2002 for Oxy-NG Combustion for Industrial Furnace Small Scale Oxy-Coal Combustion R&D from 2006 by CDRS(KIER) MKE(Ministry of Knowledge Economy) : Energy R&D Program 10 New Researches are Proposed (2006) Planning Report submitted : May 2007 National R&D Program Led by KEPRI Launched in October 2007 Industrial Participants KOSEP Dae-sung Industrial lgas Korea Cottrell Tentative Demonstration Site : Young-dong Power Station Unit #1

12 Korean Project on Oxy-coal Combustion First step of a long term project aiming 2020 and beyond Finding solution in the CCS Design development of oxy-coal power plant Coal power plant as highly visible point source (320 M 500MW unit) Demonstration of Carbon Capture and Storage Readiness for coal fired power plants by 2018(100 MW) Technical Significance Commercial-scale oxy-coal plant (~500MW) Cost of CCS <30 /tco2

13 Plan of Research and Development for Oxy-PC Combustion Phased Target 1 st Step 07.10~ 10.09(3yrs) Development of conceptual Design Of Oxy-PC combustor 2 nd Step 10.10~ 12.09(2yrs) Basic Design of Oxy-PC Combustor 3 rd Step 12.10~ 05.09(3yrs) Detailed Design & Construction of 100MW grade Oxy-PC Power plant -Conceptual Design of Oxy-PC Boiler -Optimization & Integration of Oxy-PC Boiler -Development of key technology of Oxy-PC Combustor -Development of SOx & Dust Removal New Technology -Basic Design of Oxy-PC Plant -Pilot plant test operation -Preparation of construction -Development of key technology Detailed Design & Construction of Demo. Plant (100MW class)

14 Oxy-PC Technology Development Plan Phase I (2007~ 10) Research and Conceptual Design Development Phase II (2010~ 13) Basic/Detailed Design of a Demo. Plant Phase III (2013~ 15) Construction of Demo. Plant Plant Conceptual Design KEPRI Boiler & Combustion KEPRI/KITECH Environmental Control KIMM CO2 Storage KIGAM KOSEP Dae-sung Ind. Gas KOSEP KOSEP Korea Cottrell Design Concept for Optimum Operation Boiler & Burner Development Flue Gas Cleaning for Plant Maintenance Fundamental lstudy CSLF : Otway Bay Project

15 Optimization Technology Final Target Development of Oxy-PC Power Gen. System Optimization Technology (ASU-Boiler-FGR-CO2 recovery] Drawing of Oxy-PC Power Gen. System Concept Design (Efficiency Penalty under 8% ) Annual Research Target Ye2ar2 1 Year 2 Year 3 Establishment of process analysis method for Oxy-PC Power Gen. System Deduction of integrated process analysis & system integration method for Oxy-PC Power Gen. System Deduction of the optimum concept design for Oxy-PC Power Gen. System Expected effect Ensuring technology independence & essential technology of Oxy-PC Power Gen. System

16 Conceptual Design of Oxy-PC Boiler 100MW Class Oxy-PC Boiler Conceptual Design Infra. for Oxy-PC Boiler Design PC Boiler Design Tech. PC Boiier Design Guidelines PC Boiler Design Procedure Oxy-PC Boiler Combustion Test Performance Characteristics Oxy-PC Boiler Design Infra. Oxy-PC Boiler Design Procedure Small Scale Oxy-PC Boiler Test Oxy-PC Boiler Design Tool Oxy-PC Boiler Conceptual Design Oxy-PC Furnace Design Oxy-PC Tube Bank Design Heat & Mass Balance Design 1 st Year 2nd Year 3 rd Year

17 Oxy fuel Development Strategy To develop a competitive oxy-fuel firing technology suitable for full plant application post-2015 A phased approach to the development and demonstration of oxy fuel technology Phase 1: Fundamentals Technologies and conceptual Design Phase 2: Basic Design of Oxy fuel Combustion System Phase 3: Detail Design and Repowering of 100MWe class power plant 17

18 Oxy-PC Facility Schematic Diagram Gas + P.C Pulverized Coal Firing

19 ASU Facility Air Comp. Tank Warm Part Cold Box

20 Proposed Demonstration Project CO 2 Capture Repowering the Young-dong unit #1 Current : 125MWe. Domestic Anthracite Decommission by 2013 Repowering to Oxy-Fuel Boiler Coal : Imported Sub-Bituminous or Bituminous coal 100MWe Class Demonstration Design by 2013 Construction by 2015 Demonstration : 2016~2018

21 Simplified Oxy power plant in Young Dong Coal Yard ASU Ash Pond FGD ESP CO 2 Processing Boiler Turbine House

22 Actual power plant design condition ITEM Summary (Yungdong#1) Capacity 125MW Fuel Anthracite, bituminous coal, heavy oil mixing Main M i Stm. St Pr/Temp kg/cm2 / 541C Efficiency y 36% Comp. Year & manufactur er 1973, HITACHI

23 Design Boiler Type : Subcritical, drum type, 1 Stage reheat, balanced Draft, constant pressure Capacity : 420 T/H (MCR) Fuel : Sub-Bituminous, coal light oil (start up) STM Cond. (S/H out) : 131kg/cm 2, 541 (R/H out) : 31.5kg/cm 2, 541 Boiler efficiency : 93% Combustion o Type : Dual type(oxy, y, Air Combustion) o Environmental : In-Furnace(Oxy Comb.) FGD(Air Comb.)

24 Young-dong Opportunity Young-dong Power Station Unit #1 : 125MWe Coal Type : Domestic Anthracite (Heavily Subsidized) Oxy-Fuel Young-dong Unit #1 Coal Supply for unit #1 : End by 2013 MOEnv. will not Renew the Environmental Permit for the Current Unit New Unit is Necessary KOSEP decided to convert the unit #1 for Oxy-Fuel option Coal Type : Sub-Bituminous or Bituminous coal Optimize the Electric Cost

25 Technological Objectives Performance Optimization Control & Management of Incondensible Gas (Ar, N2, O2,) Combustion Low NOx & Excess O2 Combustion Boiler Optimization : Capture Ready Possible Plant & Environmental Cost Bypass SCR & FGD CO2 Treatment Dry DeSOx Process : Combined with Low Sulfur Coal Type & Hybrid EP Currently No Full Scale CO2 Storage Possible Main Concern Technical Issues in Post Capture Treatment (Purification & Compression) Utilization of the Captured CO2

26 Summary Korea Government have a plan to join the 20 by 20 CCS Project which will be selected on 2010 G8 Extended Summit meeting Korea Government proposed three scenarios to cut it s C02 emission by 2020, final reduction target will be confirmed by the end of this year through a national consensus. KEPEI and KOSEP would like to install the Demonstration of Carbon Capture and Storage Readiness for coal fired power plants by 2015(100MW) in Young Dong Power Plant.